Garden pea GDD (Heat Units) Calculator
Calculate growing degree days for garden pea (base 5°C, ~1200 GDD) and estimate days to maturity.
Cool-season peas have a low base temperature (5°C) and reach maturity at ~1200 GDD. GDD = (Tmax + Tmin)/2 − 5°C; accumulate from sowing to predict stages and harvest.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Growers use the free Garden pea GDD Calculator to schedule the crop by accumulated heat units rather than calendar days, improving harvest and stage prediction.
About Garden pea GDD (Heat Units) Calculator
Garden pea develops by accumulated heat, not calendar days. With a base temperature of 5°C and roughly 1200 growing degree days to maturity, daily GDD = (Tmax + Tmin)/2 − 5°C. Cool-season peas have a low base temperature (5°C) and reach maturity at ~1200 GDD. Enter today's temperatures and your accumulated GDD to see today's heat units, the estimated days to maturity at current temperatures, and the progress to harvest.
How to use Garden pea GDD (Heat Units) Calculator
- 1Enter today's max and min temperature.
- 2Optionally enter accumulated GDD since sowing.
- 3Read today's GDD, days to maturity and progress.
Why use Garden pea GDD (Heat Units) Calculator?
- ✓Uses garden pea's base temperature and GDD-to-maturity
- ✓Predicts maturity from heat units, not the calendar
- ✓Tracks progress to harvest
- ✓Free, instant and fully in-browser
Frequently asked questions
What base temperature does garden pea use for GDD?+
About 5°C. Daily growing degree days are the mean temperature minus 5°C, so little development is credited on days below that threshold.
How many GDD does garden pea need?+
Roughly 1200 growing degree days to maturity. Cool-season peas have a low base temperature (5°C) and reach maturity at ~1200 GDD.
Why track heat units instead of days?+
Because temperature drives development: the same GDD total marks the same growth stage whether the season is warm or cool, making GDD a better scheduling tool than days after sowing.
Is this tool free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline in the field and your data never leaves the device.
Related Agri tools
Tractor Fuel Consumption Calculator
Estimate your tractor's diesel consumption per hour from its horsepower, load and specific fuel consumption.
● LiveTractor Fuel Cost Per Acre Calculator
Convert your tractor's fuel use per hour into diesel litres and cost per acre for any field operation.
● LiveImplement Field Capacity Calculator
Calculate the effective field capacity (ha/h and acres/h) of any implement from width, speed and field efficiency.
● Live